package characters

import (
	"errors"
	"strconv"
	"strings"

	"git.aiterp.net/rpdata/api/internal/counter"
	"git.aiterp.net/rpdata/api/models"
)

// Add creates a Character and pushes it to the database. It does some validation
// on nick, name, shortName and author. It will generate a shortname from the first
// name if a blank one is provided.
func Add(nick, name, shortName, author, description string) (models.Character, error) {
	if len(nick) < 1 || len(name) < 1 || len(author) < 1 {
		return models.Character{}, errors.New("Nick, name, or author name too short or empty")
	}
	if shortName == "" {
		shortName = strings.SplitN(name, " ", 2)[0]
	}

	char, err := FindNick(nick)
	if err == nil && char.ID != "" {
		return models.Character{}, errors.New("Nick is occupied")
	}

	nextID, err := counter.Next("auto_increment", "models.Character")
	if err != nil {
		return models.Character{}, err
	}

	character := models.Character{
		ID:          "C" + strconv.Itoa(nextID),
		Nicks:       []string{nick},
		Name:        name,
		ShortName:   shortName,
		Author:      author,
		Description: description,
	}

	err = collection.Insert(character)
	if err != nil {
		return models.Character{}, err
	}

	return character, nil
}